28 Nolser

Rayzor · #1 03-16-2018, 04:00 PM

Anyone out there have a 28 Nosler and been able to get 3300 FPS (as marked on the Nosler factory ammo box) out of the 160 Grain Nosler ammo?

I'm shooting an M48 Liberty with a 26" barrel. I can't imagine that the test rifle had a longer barrel than that. Rounds were all at about 20C when fired and I'm averaging 2150 FPS. I shot on a sunny day and a cloudy day; deviation was 20 FPS...a far cry from 3300 FPS. I'm 22 rounds into the 30 round break in so I can't see the velocity changing much after complete break in.

Curly Bill · #2 03-16-2018, 04:53 PM

Something is definitely wrong to be getting that low a velocity from that cartridge and that load.

Smokinyotes · #3 03-16-2018, 04:58 PM

Try a different chrony.

Hunt4Ever · #4 03-16-2018, 08:57 PM

Chronographs are chronological liars!

catnthehat · #5 03-16-2018, 10:47 PM

Heck my 303 Brit runs a 174 quite a bit faster!

As was already suggested, try a different chronograph or a different rifle through the same one to check it.
Cat

bchap22 · #6 03-16-2018, 11:33 PM

Im pushing the 195 gr bergers at 3135 fps. I would say you need a new chrono.

JD848 · #7 03-17-2018, 02:44 AM

New battery is needed as your low one doesn't have enough juice to give proper readings.Unless your chrony is 500yrds away that would be you fps.

YYC338 · #8 03-17-2018, 08:46 AM

Seriously? The velocity is 2150fps, not 3150fps?

Rayzor · #9 03-17-2018, 12:41 PM

Oops....3150 FPS...

Full Curl Earl · #10 03-17-2018, 12:41 PM

How far is chrono placed out front? Also, was the chrono consistently giving up numbers or were there quite a few “errors” or no responses?
Also, test barrels are often longer than 26” if I recall correctly.

Rayzor · #11 03-17-2018, 02:29 PM

Thanks YYC338.... I was wondering what the heck was going on!!! Buddy's 303 was outperforming my 28!!!
I just shot a few more rounds across my friend's chrono (different brand than mine) and I got virtually identical readings with his: 3159 FPS from the Nosler Accubond Trophy Grade 160 Grain bullets.

I'm getting 3250 FPS from same bullets with 80 grains of RE25 which is a bit lower than Nosler's published data but not 150 FPS lower like the factories.

Anyone out there test these cartridges (even a different caliber of the same manufacturer) and get similar results?

STY181 · #12 03-17-2018, 08:49 PM

I find that velocities listed on ammo box's are usually on optimistic side

Dean2 · #13 03-18-2018, 05:27 AM

Norma loads ammo for Weatherby. Any factory ammo I measured made by them hit or exceeded the box but I have only tried 257 Bee, 460 Bee and 270 Win ammo made by them. Same is true of the Privi, Hornady and Winchester ammo that I have measured. I have never Chronoed Nosler ammo. That said I have seen the same ammo shoot 200 FPS difference on the same day in two different guns, both with the same length barrels.,